Bluetooth headset



FIG. 1 is a perspective view of Bluetooth headset showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective view of Bluetooth headset showing our new design.

The broken lines in the Figures are for illustrative purposes and form no part of the claimed design. 

The ornamental design for Bluetooth headset, as shown and described. 